[PATCH 3/9] gdb: simplify insertion in global_symbol_searcher::add_matching_symbols

[Simon Marchi <simon.marchi@efficios.com>]

std::set::insert does nothing if an equivalent element is already
in the set, so checking with find first is redundant.  Replace find+insert
with emplace.

Change-Id: I869284407cfefb9b2d7ad7305fe04fbdaee25f1f
---
 gdb/symtab.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/gdb/symtab.c b/gdb/symtab.c
index c4f76a494abd..4b2c4be8d117 100644
--- a/gdb/symtab.c
+++ b/gdb/symtab.c
@@ -4880,13 +4880,9 @@ global_symbol_searcher::add_matching_symbols
 	      if (sym->domain () == MODULE_DOMAIN && sym->line () == 0)
 		continue;
 
+	      /* Match, insert if not already in the results.  */
 	      if (result_set->size () < m_max_search_results)
-		{
-		  /* Match, insert if not already in the results.  */
-		  symbol_search ss (block, sym);
-		  if (result_set->find (ss) == result_set->end ())
-		    result_set->insert (ss);
-		}
+		result_set->emplace (block, sym);
 	      else
 		return false;
 	    }
-- 
2.55.0